[{"data":1,"prerenderedAt":188},["ShallowReactive",2],{"leaderboard-total":3,"spot-seo-thetford-reef":9,"spot-thetford-reef":51},{"entries":4,"total":5,"period":6,"type":7,"generated_at":8},[],0,"all_time","reports","2026-10-02T06:59:37.379659Z",{"title":10,"description":11,"canonical_url":12,"og_image":13,"structured_data":14,"breadcrumbs":44},"Snorkeling Conditions at Thetford Reef - How's the Spot","Check snorkeling conditions at Thetford Reef, Queensland. Good conditions, water 23.9°C, waves 0.24m","https:\u002F\u002Fhowsthespot.com\u002Fspots\u002Fthetford-reef","https:\u002F\u002Fhowsthespot.com\u002Fog-default.png",[15,28],{"@context":16,"@type":17,"name":18,"description":19,"url":12,"geo":20,"address":24},"https:\u002F\u002Fschema.org","Place","Thetford Reef","Thetford Reef is a horseshoe-shaped outer reef about 45 km off Cairns, spanning 2 km of scattered coral heads, sandy patches, and swim-throughs. Its sheltered position makes it a reliable alternati...",{"@type":21,"latitude":22,"longitude":23},"GeoCoordinates",-16.801807,146.181205,{"@type":25,"addressRegion":26,"addressCountry":27},"PostalAddress","Queensland","Australia",{"@context":16,"@type":29,"name":30,"description":11,"url":12,"breadcrumb":31},"WebPage","Snorkeling Conditions at Thetford Reef",{"@context":16,"@type":32,"itemListElement":33},"BreadcrumbList",[34,39,42],{"@type":35,"position":36,"name":37,"item":38},"ListItem",1,"Home","https:\u002F\u002Fhowsthespot.com",{"@type":35,"position":40,"name":26,"item":41},2,"https:\u002F\u002Fhowsthespot.com\u002Fexplore?region=queensland",{"@type":35,"position":43,"name":18,"item":12},3,[45,47,49],{"label":37,"href":46},"\u002F",{"label":26,"href":48},"\u002Fexplore?region=queensland",{"label":18,"href":50},"\u002Fspots\u002Fthetford-reef",{"id":52,"name":18,"slug":53,"latitude":22,"longitude":23,"description":54,"difficulty":55,"image_url":56,"status":57,"tide_constituents":58,"hazard_entries":109,"access_info_structured":126,"area_boundary":56,"routes":56,"created_at":133,"updated_at":134,"today_conditions":135,"today_verdict_view":156,"images":184,"submitted_by":185,"region_name":26,"verification_status":187,"verified_at":56,"disputed":178,"verifier_count":5,"last_verified_display_name":56},"2e5c7887-8094-4cbc-ba27-f4c2cdc2f94c","thetford-reef","Thetford Reef is a horseshoe-shaped outer reef about 45 km off Cairns, spanning 2 km of scattered coral heads, sandy patches, and swim-throughs. Its sheltered position makes it a reliable alternative when rougher outer reefs are inaccessible. Snorkelers explore vibrant coral gardens at sites like Squirts, where giant clams, anemonefish, and butterflyfish abound, while the shallow back of Horseshoe offers a calm, protected lagoon. Morning conditions typically deliver the best visibility across this compact, biodiverse reef system.","intermediate",null,"published",{"name":59,"amplitude":75,"phase":91,"latitude":22,"model":107,"epoch":108},[60,61,62,63,64,65,66,67,68,69,70,71,72,73,74],"2N2","J1","K1","K2","M2","M4","MF","MM","N2","O1","P1","Q1","S1","S2","T2",[76,77,78,79,80,81,82,83,84,85,86,87,88,89,90],0.025374241667260784,0.018135981001956136,0.30895176031024013,0.0847179125513345,0.5252076487300318,0.0033399949312993534,0.010652259258747146,0.007391613260080092,0.17862365492253068,0.15212704754764983,0.08647438712588744,0.025003765808408157,0.005774727290457886,0.30137243887862203,0.03285342013340223,[92,93,94,95,96,97,98,99,100,101,102,103,104,105,106],320.2705082517867,52.89939565987985,38.62038409620881,298.9586582121224,343.72613293109157,233.16200276621925,10.203704661985588,34.72505215442677,327.1588298840237,12.406267526789724,35.81907132513867,352.8973249382054,324.53404367458927,304.06213619870107,271.31455597093276,"EOT20","1992-01-01T00:00:00Z",[110,114,119,123],{"name":111,"description":112,"severity":113,"season_start":56,"season_end":56},"Tidal currents","Strong tidal flows can run through the reef channels and swim-throughs, especially during spring tides.","caution",{"name":115,"description":116,"severity":113,"season_start":117,"season_end":118},"Trade wind chop","Southeasterly trade winds from June to September can create choppy surface conditions on the transit and at the reef.",6,9,{"name":120,"description":121,"severity":122,"season_start":56,"season_end":56},"Marine stingers","Stinger season — box jellyfish and Irukandji are present in coastal and reef waters during the warmer months (November to May).","warning",{"name":124,"description":125,"severity":113,"season_start":117,"season_end":118},"Exposed bommie swells","Exposed bommie sites like Dog's Bommie attract larger pelagic species and are only visited in calm weather.",{"directions":127,"parking":128,"facilities":129,"fees":131,"access_method":132},"Thetford Reef is located approximately 45 km east of Cairns, Queensland. It is only accessible by commercial tour boat; the journey takes about 90 minutes. Boats depart from the Cairns Marlin Marina. Popular operators include Passions of Paradise, Silverswift, Dreamtime Dive & Snorkel, and Pro Dive Cairns.","Paid parking is available under The Pier Marketplace at Marlin Marina in Cairns (approx. AUD $7 per day).",[130],"toilets","Tours range from approximately AUD $275 to $308 per person for day trips; liveaboard packages cost more.","snorkel_tour","2026-07-27T02:54:20.510387Z","2026-08-04T05:30:44.786710Z",{"verdict":136,"evaluated_at":137,"models":138},"go","2026-10-02T02:16:12.942922Z",[139,146,151],{"model_name":140,"is_favourable":141,"value":142,"threshold":143,"unit":144,"operator":145},"Wind Speed",true,8.58,10,"kn","lte",{"model_name":147,"is_favourable":141,"value":148,"threshold":149,"unit":150,"operator":145},"Wave Height",0.24,0.5,"m",{"model_name":152,"is_favourable":141,"value":153,"threshold":40,"unit":154,"operator":155},"Visibility",2.39,"","gte",{"verdict":136,"rating":157,"evaluated_at":137,"generated_at":137,"source":158,"confidence":159,"visibility":162,"parameters":163,"models_passed":43,"models_total":179},"Good","precomputed",{"level":160,"value":161},"High",100,{"score":153,"rating":56,"confidence":56},[164,165,171,174,181],{"name":147,"value":148,"label":56,"unit":150,"favourable":141,"score":43,"optimal_max":149,"marginal_max":36},{"name":166,"value":167,"label":56,"unit":168,"favourable":141,"score":43,"optimal_max":169,"marginal_max":170},"Swell Period",5.45,"s",8,12,{"name":140,"value":172,"label":56,"unit":144,"favourable":141,"score":43,"optimal_max":143,"marginal_max":173},8.5820536,15,{"name":175,"value":176,"label":56,"unit":177,"favourable":178,"score":36,"optimal_max":179,"marginal_max":180},"Precipitation",8.1,"mm",false,5,20,{"name":182,"value":56,"label":183,"unit":154,"favourable":178,"score":36,"optimal_max":56,"marginal_max":56},"Tidal Phase","flood",[],{"display_name":186},"Daniel","unverified",1790924512600]